Ad Blocker Test – Check If Your Ad Blocker Works

This article describes an ad blocker testing tool that checks whether browsers, extensions, VPNs, or DNS filters effectively block ads, trackers, and analytics scripts through three independent tests: cosmetic filtering, script loading, and host blocking. The tool explains that test failures typically indicate the specific test website isn't covered by the ad blocker's rules rather than a general failure of protection, and users can add custom rules or use the Turtlecute Host List to improve their scores. A green score indicates satisfactory protection without needing to achieve a perfect 100%.